1. Departments of Anesthesiology and Reanimation, Dicle University, Diyarbakir
2. Department of Neurosurgery, Mersin University, Mersin,
3. Department of Neurosurgery, Harran University, Sanliurfa,
4. Department of Anesthesiology and Reanimation, Alman Hospital, Batman,
5. Departments of Anesthesiology and Reanimation, Balıklıgöl State Hospital, Sanliurfa
6. Department of Neurosurgery,Sanliurfa Training and Research Hospital,Turkey